Idec Izumi Corporation

Tatsunobu Nakai

Toshihiro Fujita

Yoshitaka Tsuji

Tomonori Nishiki

Masaaki Fujii

Masahiko Kawakami

Toshiyuki Kasama

Takao Hosorogi

Yosio Sekino

Shinichi Ishino

Yoshihide Nakano

Shigoto Ogino

Takehiko Tajika

Masao Dohi

Yuuhei Sugai

Panel units ( to ) continuing an operation indicating panel ( ) each have a rectangular surface S with length and width each being substantially an integral multiple of a predetermined reference size (L). The panel units ( and ) are placed so that their surfaces S may be adjacent to one another. A whole surface (AS) consisting of the surfaces S of all the panel units ( to ) is formed in a rectangular shape with length and width each being substantially an integral multiple of the predetermined reference size (L). The arrangement and the like of the panel units ( to ) can be easily changed.

Operation indicator device and panel unit

Programmable logic controller

Growing community of inventors

Osaka, Japan

Tatsunobu Nakai